6321387 has 8 divisors (see below), whose sum is σ = 8624704. Its totient is φ = 4116168.

The previous prime is 6321379. The next prime is 6321401. The reversal of 6321387 is 7831236.

6321387 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6321387 - 2³ = 6321379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6321307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24373 + ... + 24630.

It is an arithmetic number, because the mean of its divisors is an integer number (1078088).

Almost surely, 2^6321387 is an apocalyptic number.

6321387 is a deficient number, since it is larger than the sum of its proper divisors (2303317).

6321387 is a wasteful number, since it uses less digits than its factorization.

6321387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49049.

The product of its digits is 6048, while the sum is 30.

The square root of 6321387 is about 2514.2368623501. The cubic root of 6321387 is about 184.9002335221.

The spelling of 6321387 in words is "six million, three hundred twenty-one thousand, three hundred eighty-seven".